STOCKHOLDERS’ EQUITY

The following table summarizes the changes in stockholders’ equity (in millions):



	Gilead Stockholders’ Equity													Noncontrolling Interest		Total Stockholders’ Equity
	Common Stock				Additional Paid-In Capital			Accumulated Other Comprehensive Income (Loss)			Retained Earnings
	Shares		Amount		Additional Paid-In Capital			Accumulated Other Comprehensive Income (Loss)			Retained Earnings
Balance at December 31, 2017	1,308		$	1	$	1,264		$	165		$	19,012		$	59	$	20,501
Change in noncontrolling interest	—		—		—			—			—			82		82
Net income	—		—		—			—			5,452			5		5,457
Other comprehensive income, net of tax	—		—		—			164			—			—		164
Issuances under employee stock purchase plan	1		—		91			—			—			—		91
Issuances under equity incentive plans	12		—		167			—			—			—		167
Stock-based compensation	—		—		667			—			—			—		667
Repurchases of common stock	(27	)	—		(71		)	—			(1,996		)	—		(2,067		)
Dividends declared	—		—		—			—			(2,245		)	—		(2,245		)
Cumulative effect from the adoption of new accounting standards	—		—		—			(293		)	483			—		190
Balance at September 30, 2018	1,294		$	1	$	2,118		$	36		$	20,706		$	146	$	23,007

Accumulated Other Comprehensive Income (Loss)

The following table summarizes the changes in AOCI by component, net of tax (in millions):



	Foreign Currency Translation			Unrealized Gains and Losses on Available-for-Sale Securities			Unrealized Gains and Losses on Cash Flow Hedges			Total
Balance at December 31, 2017	$	85		$	194		$	(114	)	$	165
Reclassifications to retained earnings as a result of the adoption of new accounting standards	—			(293		)	—			(293		)
Balance at January 1, 2018	85			(99		)	(114		)	(128		)
Net unrealized gain (loss)	(17		)	25			51			59
Reclassifications to net income	—			4			101			105
Net current period other comprehensive income (loss)	(17		)	29			152			164
Balance at September 30, 2018	$	68		$	(70	)	$	38		$	36

The amounts reclassified to net income for gains and losses on cash flow hedges are recorded as part of Product sales on our Condensed Consolidated Statements of Income. See Note 5, Derivative Financial Instruments, for additional information. The amounts reclassified to net income for gains and losses on available-for-sale debt securities are recorded as part of Other income (expense), net, on our Condensed Consolidated Statements of Income.

Stock Repurchase Program

In the first quarter of 2016, our Board of Directors authorized a $12.0 billion stock repurchase program (2016 Program) under which repurchases may be made in the open market or in privately negotiated transactions. We started repurchases under the 2016 Program in April 2016.

During the three and nine months ended September 30, 2018, we repurchased and retired 6 million and 26 million shares of our common stock for $449 million and $1.9 billion, respectively, through open market transactions under the 2016 Program. As of September 30, 2018, the remaining authorized repurchase amount under the 2016 Program was $6.1 billion.